Detergent compositions containing wash liquid-hydrolyzable polyimide biopolymers
US5616547A · kind A · utility
14Cited by
11References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Mar 9, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1092
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Environmentally improved, storage-stable detergent compositions, having good efficacy in terms of both primary and secondary detergency, contain a surfactant and an in situ, wash water-hydrolyzable polyimide biopolymer, such polyimide biopolymer having a COO.sup.- charge density ranging from 0 to 5.times.10.sup.-4 mol/g thereof and the at least partially biodegradable polypeptide detergent builder hydrolysate thereof having a COO.sup.- charge density of at least 10.sup.-3 mol/g thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.